document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=772649>Question 772649</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Can anyone help me find the Y-intercept and the X-intercept (the point where the line crosses the X axis) for the line determined by the points (1,-2) and (3,4)? It is not making any sense to me. What is the formula for this and how do you figure it out? I'm stumped! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #471027 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39623)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=471027\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (*) Use formula for slope.  Compute the slope for the two points.<BR>\n" );
document.write( "(*) Use either slope-intercept form for a line OR point-slope form for a line to form the equation for the line.<BR>\n" );
document.write( "(*)  Rewrite your equation into standard form if you like; but put into slope-intercept form lets you see and read the y-intercept directly.  \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Formula for slope, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%284-%28-2%29%29%2F%283-1%29=6%2F2=3 ALIGN=MIDDLE  ALT=\"m=%284-%28-2%29%29%2F%283-1%29=6%2F2=3\"   DISABLED_style= \"max-width:90%; height:auto;\" >, positive three.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "To continue with slope-intercept form,  y=mx+b,<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=3x%2Bb ALIGN=MIDDLE  ALT=\"y=3x%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=y-3x ALIGN=MIDDLE  ALT=\"b=y-3x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute either given point to find b.<BR>\n" );
document.write( "-<BR>\n" );
document.write( "OR<BR>\n" );
document.write( "-<BR>\n" );
document.write( "To continue with point-slope form,   <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%28y-v%29%2F%28x-u%29 ALIGN=MIDDLE  ALT=\"m=%28y-v%29%2F%28x-u%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > in which the point (u,v) is one of the points on the line.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3=%28y-v%29%2F%28x-u%29 ALIGN=MIDDLE  ALT=\"3=%28y-v%29%2F%28x-u%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=3%28x-u%29=y-v ALIGN=MIDDLE  ALT=\"3%28x-u%29=y-v\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-v=3%28x-u%29 ALIGN=MIDDLE  ALT=\"y-v=3%28x-u%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y-v=3x-3u ALIGN=MIDDLE  ALT=\"y-v=3x-3u\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=3x-3u%2Bv ALIGN=MIDDLE  ALT=\"y=3x-3u%2Bv\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Substitute either given point for u and v to continue developing the particular equation.\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );